
let s1 = Symbol('a')
let s2 = Symbol('b')
// console.log(s1===s2)
let obj = {
    name:'liwei',
    [s1]:'ok'
}

// console.log(Object.getOwnPropertySymbols(obj))

let obj1 = {
    [Symbol.toStringTag]:'jw'
}
console.log(Object.prototype.toString.call(obj1))

